Home / 78,089.80-117,134.34-60,346.24

Finding the Fourth Proportional to 78,089.80, 117,134.34 and 60,346.24

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Solution

The fourth proportional to 78,089.80, 117,134.34 and 60,346.24 is: 90,519.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,089.80 : 117,134.34 = 60,346.24 : x
  2. Step 2: Convert to fraction form
    78,089.80/117,134.34 = 60,346.24/x
  3. Step 3: Cross multiply
    78,089.80x = 117,134.34 × 60,346.24
  4. Step 4: Simplify right side
    78,089.80x = 7,068,616,993.88
  5. Step 5: Solve for x
    x = 7,068,616,993.88/78,089.80
  6. Step 6: Final answer
    x = 90,519.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.